(Cat? OR feline) AND NOT dog?
Cat? W/5 behavior
(Cat? OR feline) AND traits
Cat AND charact*

This guide provides a more detailed description of the syntax that is supported along with examples.

This search box also supports the look-up of an IP.com Digital Signature (also referred to as Fingerprint); enter the 72-, 48-, or 32-character code to retrieve details of the associated file or submission.

Concept Search - What can I type?

For a concept search, you can enter phrases, sentences, or full paragraphs in English. For example, copy and paste the abstract of a patent application or paragraphs from an article.

Concept search eliminates the need for complex Boolean syntax to inform retrieval. Our Semantic Gist engine uses advanced cognitive semantic analysis to extract the meaning of data. This reduces the chances of missing valuable information, that may result from traditional keyword searching.

Publishing Venue

Related People

Abstract

This article discloses a design for spacer rings used in Hard Disk Drives (HDD). Spacer rings functions as a spacer between disks. These spacer rings need to be smooth as possible on the disk contact surface. This is because any distortion of the disk affects the drive's disk to head spacing. The disclosed design incorporates edges which are chamfered twice instead of the normal one chamfer. By using this design, burrs are reduced significantly and therefore, disk distortion is minimized.

Country

United States

Language

English (United States)

This text was extracted from an ASCII text file.

This is the abbreviated version, containing approximately
100% of the total text.

Double Chamfered Spacer Ring

This article
discloses a design for spacer rings used in Hard
Disk Drives (HDD). Spacer rings
functions as a spacer between disks.
These spacer rings need to be smooth as possible on the disk contact
surface. This is because any distortion
of the disk affects the
drive's disk to head spacing. The
disclosed design incorporates
edges which are chamfered twice instead of the normal one chamfer.
By using this design, burrs are reduced significantly and therefore,
disk distortion is minimized.

In the
present design, edges are machined to a chamfer of 45
degrees (Fig. 1). Burrs are often seen
at the edge of the chamfer.
In the new design, two edges are created (Fig. 2). In this way,
burrs can be minimized because the angle of machining is dull. An
arbitrary angle less than 45 degrees can be selected according to the
application.